fridge A.朋友 B.冰箱 C.书架
Chinese people invented paper _____printing. A. andB. but
Yesterday I ______ my room. A. cleanB. cleaned
Thank you _______ your letter. A. forB. to
A: Happy birthday to you! B:______ A.OK!B. Thank you !
给左边的句子选择正确的答语。
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